US3241535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum flow control for crankcase ventilation
Assignee: FOG AIRE Inc
•
Filing: 1964-01-20
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Granted: 1966-03-22
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Expires: 1984-01-20
Abstract
No abstract record available.
Inventors
- 👤 William R Drysdale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:50
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/02; F01M13/021; F01M13/022; F01M13/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A VACUUM FLOW CONTROL DEVICE FOR CRANKCASE VENTILATION FOR AN INTERNAL COMBUSTION ENGINE HAVING AN OIL FILLER PIPE AND AN INTAKE MANIFOLD, COMPRISING CONDUIT MEANS PROVIDING A FREE PASSAGEWAY BETWEEN THE CRANKCASE COMPARTMENTS AND THE CARBURETOR CHAMBER ABOVE THE THROTTLE VALVE AND BELOW THE VENTURI AND GASOLINE JETS IN THE CARBURETOR.
Claim 2
Dependent Claim
51 words
A VACUUM FLOW CONTROL DEVICE FOR CRANKCASE VENTILATION FOR AN INTERNAL COMBUSTION ENGINE HAVING AN OIL FILLER PIPE AND AN INTAKE MANIFOLD, COMPRISING CONDUIT MEANS PROVIDING A FREE PASSAGEWAY BETWEEN THE CRANKCASE COMPARTMENTS AND THE CARBURETOR CHAMBER ABOVE THE THROTTLE VALVE AND BELOW THE VENTURI AND GASOLINE JETS IN THE CARBURETOR.
References Cited (Backward Citations)
US2281124A
Cited
US2489230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |